[    1.867840] ip (293) used greatest stack depth: 12248 bytes left
[   11.131540] mpls_gso: MPLS GSO support
[  947.018449] blackhole_netdev_xmit(): Dropping skb.
[  947.018537] blackhole_netdev_xmit(): Dropping skb.
[  947.018585] blackhole_netdev_xmit(): Dropping skb.
[  947.018637] blackhole_netdev_xmit(): Dropping skb.